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The Timber Culture Act was a follow-up act to the Homestead Act.The Timber Culture Act was passed by Congress in 1873. The act allowed homesteaders to get another 160 acres (65 ha) of land if they planted trees on one-fourth of the land, because the land was "almost one entire plain of grass, which is and ever must be useless to cultivating man."
America had its own conservation movement in the 19th century, most often characterized by George Perkins Marsh, author of Man and Nature.The expedition into northwest Wyoming in 1871 led by F. V. Hayden and accompanied by photographer William Henry Jackson provided the imagery needed to substantiate rumors about the grandeur of the Yellowstone region, and resulted in the creation of ...
Almost immediately the London Company began sending shipments of trees back to England. A letter written in 1608 expressing the abundant discovery of good trees for export read, “I heare not of any novelties or other commodities she hath brought more then sweet woode.” However, exportation of any scale was delayed.
Mastodons arrived in North America by crossing the Bering land bridge from the old world during the Miocene as well. [148] The oreodonts became extinct during the Pliocene. [146] By the time the Pliocene ended more modern carnivores like wolves and cats appeared. Notable among the latter group were the saber-toothed cats. [141]
The development of agriculture about 12,000 years ago changed the way humans lived. They switched from nomadic hunter-gatherer lifestyles to permanent settlements and farming. [1] Wild grains were collected and eaten from at least 104,000 years ago. [2] However, domestication did not occur until much later.
The leaves were only present on thin and young branches, indicating that, though the lycopsid were evergreen, they did not retain their needles for as long as modern conifers. The leaf-cushions were fusiform and elongated, growing at most to a length of 8 cm (3 in) and a width of 2 cm (3 ⁄ 4 in).
The Columbian exchange of crop plants, livestock, and diseases in both directions between the Old World and the New World. In 1972, Alfred W. Crosby, an American historian at the University of Texas at Austin, published the book The Columbian Exchange, [2] thus coining the term. [1]
Lightning and humans burned the understory of longleaf pine every 1 to 15 years from Archaic periods until widespread fire suppression practices were adopted in the 1930s. Burning to manage wildlife habitat did continue and was a common practice by 1950.